Question

You have a steel ball that has a mass of 6.0 kg and a volume of 3.0 * 10 -3 m3 . How can this be?

Answer 1

but if we use the mass and volume given, our density is 2000 kg/m^3, not 7800 kg/cm^3

Answer 2

This is possible because the density of steel is 7.8 g/cm3, which is equivalent to 7800 kg/m3. Therefore, the mass of the steel ball is 6.0 kg and the volume is 3.0 * 10-3 m3.